The 'Krakatoa Eruption' meme primarily stems from the iconic SpongeBob SquarePants episode where Squidward transforms into Captain Magma, a superhero whose primary ability is erupting on command. His signature catchphrase, 'KRAKATOA!', shouted just before a lava blast from his head, has since become a legendary internet reaction for uncontrollable fury or exaggerated reactions to minor annoyances. The template is widely used across social media to illustrate moments of total meltdown, sudden outbursts, or situations that escalate far more quickly than expected. It perfectly captures the relatable feeling of 'losing it' in a loud, dramatic, and humorous fashion.